--- Look at the boy running on the ground. Is it Frank?
--- It ________ be him. I saw him go to the library just now.
| A．mustn’t | B．can’t |
| C．needn’t | D．might not |
一I like the smell in the air—newly-cut grass and sweet flowers．
一 .It smells so nice．
| A．So I do | B．So do I | C．So am I | D．So I am |
—What’s your idea about family education?
— kids learn to be independent, it is for their future.
| A．The earlier,the better | B．The more,the more |
| C．The earlier,the earlier | D．The better,the earlier |
— ?You look upset．
—My father has taken away the computer. He says I can't have it back until all the exams are over．
| A．Why not |
| B．How is your father |
| C．How can you help me |
| D．What’s wrong with you |
—May I use your ruler?
—Yes， ．
| A．feel tired | B．feel free |
| C．feel terrible | D．feel well |
Now all passengers show their ID cards and go through the safety check before they take a train.
| A．would | B．may | C．could | D．must |